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IEC 60695-7-1:2010 provides guidance on the factors which affect the toxic hazard from fires involving electrotechnical products, and provides information on the methodologies recommended by ISO TC 92 (SC 3) for estimating and reducing the toxic hazard from fires, as expressed in ISO 19706, ISO 13344 and ISO 13571. There is no single test to realistically assess toxic hazard in fires. Small-scale toxic potency tests are not capable on their own of assessing the toxic hazard in fires. Current toxicity tests attempt to measure the toxic potency of a laboratory generated fire effluent. Toxic potency should not be confused with toxic hazard. The main changes with respect to the previous edition are as follows: - minor editorial and technical changes throughout; - references to the ISO 9122 series have been deleted and the text throughout has been updated; - definitions have been updated in accordance with ISO/IEC 13943:2008; - dispersal volume is stated to be an important parameter in the assessment of toxic hazard; - table 2 has been updated; - figures 1 and 2 have both been updated. This document has the status of a basic safety publication in accordance with IEC Guide 104 and ISO/IEC Guide 51.

This publication is to be read in conjunction with IEC 60695-7-2:2002.